The hole saw's cup design is manufactured from a special alloy steel and the cutting edges are Tungsten Carbide gritted. It is specially designed to drill into abrasive materials.
The hole saw can be used to cut into:
Fiberglass
Kevlar
Asbestos
Graphite
Carbon
Brick
Tiles
Plaster slabs
Walls
Light stones
Weatherboard
Why use Carbide?
On the Mohs hardness scale, Tungsten Carbide is rated between 9 and 10. It is almost as hard as Diamond. The hole saw remains sharper for longer and it can be used to cut into many more materials.
Features:
Strong design with a tough alloy body for added durability.
Knock out holes for plug removal.
Depth of cut: 38mm
Carbide metal surface doesn't break off.
Fast, aggressive cut in many materials with little effort